<template>
  <div>

    <!-- 1.定义面包屑导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/guke' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 2.定义卡片视图 -->
    <el-card class="box-card">

      <!-- 3.定义栅格的一行 :gutter="20"定义行间距   :span="9" 占位符  -->
      <el-row :gutter="20">
        <el-col :span="9">
          <!-- 3.定义搜索框 -->
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getItemList">
            <el-button slot="append" icon="el-icon-search" @click="getItemList"></el-button>
          </el-input>
        </el-col>
      </el-row>

      <!-- 员工数据表格展现  border 边框线属性  -->
      <el-table :data="itemList" border stripe>
        <el-table-column type="index" label="序号"></el-table-column>
        <el-table-column prop="itemName" label="商品名称"></el-table-column>
        <el-table-column prop="itemSale" label="价格"></el-table-column>
        <el-table-column label="操作">
          <template slot-scope="scope">
            <el-button type="primary" @click="dialogVisible = true">购买</el-button>
            
          </template>

        </el-table-column>
      </el-table>

      <!-- 定义分页组件 关于分页插件的属性说明
            1.@size-change 如果分页中每页实现的条数发生变化 则会触发这个该事件
            2.@current-change 当页数发生改变时,触发该函数
            3.current-page 当前选中的页
            4.page-sizes   页面数据展现的选项
            5.page-size    默认选中的页数
            6.layout    分页中展现的数据种类
            7.total     记录总数
       -->
      <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange"
        :current-page="queryInfo.pageNum" :page-sizes="[5, 10, 20, 40]" :page-size="queryInfo.pageSize"
        layout="total, sizes, prev, pager, next, jumper" :total="total">
      </el-pagination>
    </el-card>

    <!-- 编辑商品新增对话框 visible.sync 控制对话框的显示-->
    <el-dialog title="购物" :visible.sync="dialogVisible" width="50%" @close="closeDialog">

      <!-- 定义商品提交表单数据-->
      <el-form :model="additemModel" ref="additemRef" label-width="100px" class="demo-ruleForm" v-model="itemList">
        <el-form-item label="商品名称" prop="names">
          <el-input v-model="itemList.itemName"></el-input>
          <el-input-number v-model="num" @change="handleChange" :min="1" :max="99" label="描述文字"></el-input-number>
        </el-form-item>
        <el-form-item label="价格" prop="itemName">
          <el-input v-model="itemList.itemName"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="dialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="additemBtn">确 定</el-button>
      </span>
    </el-dialog>

  </div>
</template>

<script>

  export default {
    data() {
      return {
        num: 1,
        queryInfo: {
          query: '',
          pageNum: 1,
          pageSize: 5
        },
        itemList: [],
        //记录总数是数值类型
        total: 0,
        dialogVisible: false,
        additemModel: {
          itemName: '',
          itemSale: ''
        }
      }
    },
    methods: {
      handleChange(value) {
        console.log(value)
        
      },
      async getItemList() {
        const {
          data: result
        } = await this.$http.get('/item/getItemList', {
          params: this.queryInfo
        })
        if (result.status !== 200) return this.$message.error("员工列表查询失败")
        this.itemList = result.data.rows
        this.total = result.data.total
        console.log("总记录数:" + this.total)
      },
      handleSizeChange(pageSize) {
        //console.log("每页展现的条数"+pageSize)
        this.queryInfo.pageSize = pageSize
        this.getItemList()
      },
      handleCurrentChange(pageNum) {
        //console.log("页数:"+pageNum)
        this.queryInfo.pageNum = pageNum
        this.getItemList()
      },
      closeDialog() {
        //重置表格数据
        this.$refs.additemRef.resetFields()
      },
      //校验员工数据
      additemBtn() {
        this.$refs.additemRef.validate(async valid => {
          //如果校验失败 则停止数据
          if (!valid) return
          //console.log(this.additemModel)
          const {
            data: result
          } = await this.$http.post('/item/additem', this.additemModel,this.handleChange(value))
          if (result.status !== 200) return this.$message.error("员工新增失败")
          this.$message.success("员工新增成功")
          //关闭对话框
          this.dialogVisible = false
          //重新获取员工列表
          this.getItemList()

        })
      }
    },
    //利用钩子函数实现数据查询
    mounted() {
      this.getItemList()
    }
  }
</script>


<style lang="less" scoped>

</style>
